Device for shipping and discharging cargo



Mar. 27, 1923. 1,449,691

Y. NA KAMU RA DEVICE FOR SHIPPING AND DISCHARGING CARGO Filed Dec. 22 1919 -:FIGI.

2 sheets-sheet 1 Mar. 27, 1923.

Y. NAKAMURA DEVICE FOR SHIPPING AND DISCHARGING CARGO Filed Dec. 22, 1919 2 sheets-sheet 2 havin a larger open space ,duction of shrouds.

Patented Mar. 27, 1923.

uNir

YAZO NAKAMURA,

ater on Osa a. JAPAN.

DEVICE FOR SHIPPING AND DISCHARGING CARGO.

Application filed December 22, 1919.

which arrangement cargo-beams with a trav- 'elling carriage are horizontally suspended from a rope that is stretched out .between two mast-heads, or in absence of which, between two upstanding poles.

(The invention has for its object to have the weight of packages to be handled tobear most on the centre lineof a ship, instead of bearing on the traverse or oblique direction from it as is the case hitherto, in order that by suflicing with a fewer number of shroudssupporting the mast the ships construction can not only be simplified but the passage of packages in and out of the ship can bev made greatly freer on account of produced by re- The accompanying drawings show an embodiment of the invention. Fig. 1 is a side elevationof a ship equipped with cargo beams according to the invention. Fig. S2

is a plan; Fig; 3"is an end view of'same.

Fig.4 shows; a side elevation of a mast or a. post; Fig. 5 is a sectional view of same. Fig. dis a detail of a cargo-beam; Fig. 7"is itsysectionalview, while Fig. 8 is its modification. When reference is to be made to the accompanying drawings, the same letters indicate same or similar: parts in all the figures.

When a package is to be shipped into or discharged from a ships hold. it is hooked up to a suitable height by means of a travelling carriage Z, which is equipped on a cargo-beam h. The cargo-beam is held in a horizontal position with 'ropes g, said ropes, in turn, being suspended from another rope e; the latter is guided by rope pulleys f fixed on masts or posts 0. The raising or lowering of a package 'is regulated with the rope 7", which is wound or unwound by a winchb, so as to suit the case. The lower ends of the rope c are fixed towinch 1),. is regulated by the rope 1', which is guided ages, '1

, therefore be dispensed with.

Serial No. 346,652.

suitable points of the deck, and the position of the cargo-beam maybe changed fore or aft by pulling the rope e by a winch, b When a package is held at the end'o-f the cargo-beam, it is inferable that the loaded end will lower itself over the ships side as shown 1n Fig. 3. Guys K, h0wever, are fastened to, the other end of'the beam to prevent the dropping of: the loaded'end, and ropes j are also .fixed to the same to avoid its swingingnnotion; The carriagel travels alongthebe'am to and fro by means'of the rope v which is wound reversibly, one The vertical-- motion of the hook by rope pulleys-m and n and-ds-wound-up withthe winch 6 while it's horizontal motion is regulated bytherope g, which is guided by pulleys p and is wound up bythe winch b .,,According' to this inventiom the weight of packages. bears: n

The rope d is-stretched outifrom thebowt o the stern part binding the mast-heads or posts, and" a single shroudi on either side of them (masts or posts) will be suflicient to support them against the weight of pack} It is totion the weight of the- "cargo-beam and the be noted that'with myinventhe direction of Fi centre vline of. the ship, the bending of meets or posts in transverse,directionis v ry slight.

packageswhich itis adapted to lift is e e,

erted' on the masts-or supports; entirely n a lineuor planebetween the masts'at. all times, consequently it c is only necessaryj to brace the. imgasts' in ;-thi's 1 line in all directions to brace; the mast may Further,- masts ofr-posts of V A; largenum-= ber of 'the ,usual bracing shrouds rad ating the known type must bebuilt very strong in order to stand the strain of packagesphangingin radialydiw I reetions, while in the present invention,- need not be very strongly built. A combination of angle'and fiat bars will suffice; an example is shown in Figs. 4; and 5. They are perfectly safe. They are not required to bear strain transversely.

After unfastening the quay-ropes Zr; and j, the cargo-beam may be turned around to the other side of the ship, and, when the beam is not in use, it is lowered to the deck at a right angle to the serving position, as shown with chain lines in Fig. 1. In this position the cargo-beam maybe used as a pole for a tent to cover the hatchway.

What I claim is 1. An arrangement for shipping and discharging cargo, comprising a cargo-beam hanging horizontally from a rope, said rope being guided by rope pulleys fixed on masts or posts with a means to pull the rope in opposite directions in order to alter the position of the cargo-beam, fore or aft, means provided on the cargo-beam to lift up packages of cargo, and means for positively shifting packages of cargo to and fro on said cargobeam.

2. Loading and unloading apparatus comprising in combination, two supports, hoisting means, means for positively shifting weights to and fro transversely of said supports and means secured to said supports to support said hoisting means and said shifting means between said supports, the weight supported always exerting a force on said. supports in substantially the same direction.

3. Loading and unloading apparatus comprising, in combination, two supports, hoisting means, means for positively shifting weights to and fro transversely of said supports and flexible means secured to said supports to support said hoisting means and said shifting means between said supports. 4. Loading and unloading apparatus com prising, in combination, two supports, hoisting means, means for positively shifting weights to and fro transversely of said supports, and means connected to said supports for supporting said hoisting means and said shift-ing means, said supporting means being movable to alter the position of said hoisting means and said shifting means longitudinally with respect to said supports.

5. Loading and unloading apparatus comprising in combination, two supports, a cargo-beam, flexible means connected to said supports and said cargo-beam for supporting said cargobeam between said supports,

means on the cargo-beam for lifting loads,

and means on said cargo-beam for positively shlftlng loads back and forth along said cargo-beam.

6. Loadlng and unloading apparatus comprising, 1n combination, two supports, a cargo-beam, flexible means connected to said Y supports and said cargo-beam for supporting said cargo-beam between said supports, a carriage adapted to travel along said cargobeam, means for positively moving said carriage back and forth along said cargo-beam, and means on said carriage to raise a load.

7. Loading and unloading apparatus comprising, in combination, two supports, a cargo-beam, means for supporting said cargobeam from said supports, a carriage adapted to travel along said cargo-beam, means for moving said carriage to and fro along said cargo-beam and adapted to hold said carriage at any point along the cargo-beam, and means on said darriage to raise a load.

8. Loading and unloading apparatus comprising, in combination, two supports, a cargo-beam, means for supporting said cargo-beam from said supports, said means being movable to move said cargo-beam vertically and horizontally with respect to said supports, means on the cargo beam for lifting loads and means on the cargo-beam for positively shifting loads back and forth along said cargo-beam.

9. Loading and unloading apparatus comprising the combination With a ship provided with masts, of means for raising cargo,

means for positively shifting cargo back.

and forth transversely of the ship, and flexible means connected to two of said masts for supporting said cargo-raising means and said shifting means between said masts.

10. Loading and unloading apparatus;v

comprising the combination with a ship provided with masts, of means for raising cargo, means for positively shifting cargo back and forth transversely of the ship, and

means connected to two of said masts for:

supporting said cargo raising means and said shifting means between said masts whereby the weight of'said cargo raising means and said shifting means is exerted on said masts principally longitudinally of the ship.

In testimony whereof I hereunto afiix my signature in the presence of two witnesses.

YAZO NAKAMURAQ 

